#include <stdio.h>

int main() {
	int i = 2;
	switch (i) {
		case 1:
			printf("%d", 1)
			;
			break;
		case 2:
			printf("%d", 2);
			break;
		case 3:
			printf("%d", 3);
			break;
		case 5:
			printf("%d", 4);
			break;
		default:
			break;
	}
	return 0;
}